Function: 1. Supports playback from U-disk. 2. Supports music playback from TF card. 3. Supports WMA, MP3, WAV, FLAC music files. 4. Bluetooth-compatible supports A2DP, AVRCP, HFP. 5. Bluetooth-compatible hands-free calls. Supports Bluetooth-compatible stereo music DSP technology. Description: Material: Plastic Color: As shown Name: Bluetooth-compatible MP3 Player Rated Working Voltage: 12V-24V Limited Working Voltage: 10~26V Working Temperature: 0~50 degrees Supported Playback Formats: MP3 / WMA / WAV / FLAC Signal-to-Noise Ratio: Greater than 60dB Battery Voltage Error: ±0.5V USB1: U-disk/5V/1A USB2: QC3.0 (3.6V-12V) 18W PD3.0 (3.6V-12V) 18W Bluetooth-compatible Version: Version 5.0 Bluetooth-compatible Audio Processing: With DSP technology and A2DP (Advanced Audio Distribution Profile) function Bluetooth-compatible Transmission Distance: Less than 10M Effective Distance of Bluetooth-compatible Microphone: 0.5~2M Transmission Frequency: 87.5~108Mhz Transmission Mode: Stereo digital PLL frequency locking Package Contents: 1 x Car Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.